Deep desulfurization of diesel feedstock by selective adsorption of refractory sulfur compounds / Alain Favre-Reguillon in Industrial & engineering chemistry research, Vol. 47 N° 23 (Décembre 2008)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9617–9622 Titre : Deep desulfurization of diesel feedstock by selective adsorption of refractory sulfur compounds Type de document : texte imprimé Auteurs : Alain Favre-Reguillon, Auteur ; Marc Sévignon, Auteur ; Muriel Rocault, Auteur Année de publication : 2009 Article en page(s) : p. 9617–9622 Note générale : Chemistry engineering Langues : Anglais (eng) Mots-clés : Deep desulfurization Diesel feedstock Refractory sulfur compounds Résumé : Adsorptive desulfurization was studied using straight-run gas oil (SRGO) with various sulfur contents (390 and 60 ppm S). Immobilization of electron-poor molecules (π-acceptors) on macroporous resins was achieved in three steps starting from commercially available poly(styrene-co-divinylbenzene) beads. Influence of the temperature on adsorption was studied, and the process was examined on the basis of breakthrough curves. The regeneration of the support was studied using fixed-bed technology and was efficiently performed with toluene as the solvent. The extracted compounds were easily recovered after evaporation of the toluene and the affinity of the resins toward alkyldibenzothiophenes was confirmed by GC-FPD analysis. On the basis of these preliminary experimental results, a new concept is proposed for ultradeep desulfurization of SRGO. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801065z [article] Deep desulfurization of diesel feedstock by selective adsorption of refractory sulfur compounds [texte imprimé] / Alain Favre-Reguillon, Auteur ; Marc Sévignon, Auteur ; Muriel Rocault, Auteur . - 2009 . - p. 9617–9622. Chemistry engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N° 23 (Décembre 2008) . - p. 9617–9622 Mots-clés : Deep desulfurization Diesel feedstock Refractory sulfur compounds Résumé : Adsorptive desulfurization was studied using straight-run gas oil (SRGO) with various sulfur contents (390 and 60 ppm S). Immobilization of electron-poor molecules (π-acceptors) on macroporous resins was achieved in three steps starting from commercially available poly(styrene-co-divinylbenzene) beads. Influence of the temperature on adsorption was studied, and the process was examined on the basis of breakthrough curves. The regeneration of the support was studied using fixed-bed technology and was efficiently performed with toluene as the solvent. The extracted compounds were easily recovered after evaporation of the toluene and the affinity of the resins toward alkyldibenzothiophenes was confirmed by GC-FPD analysis. On the basis of these preliminary experimental results, a new concept is proposed for ultradeep desulfurization of SRGO. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801065z

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